4A8A:
reference: Newly folded substrates inside the molecular cage of the HtrA chaperone DegQ., Malet H, Canellas F, Sawa J, Yan J, Thalassinos K, Ehrmann M, Clausen T, Saibil HR, Nat Struct Mol Biol. 2012 Jan 15;19(2):152-7. doi: 10.1038/nsmb.2210. PMID: 22245966

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